Alexa can now distinguish between voices
Amazon Echo and Echo Dot owners in the UK, Germany, and Austria can now make voice calls and send audio messages to each other. If you're in the market for a smart speaker , your two biggest choices lie with Amazon's Echo line and Google's Home devices.

Time to get consent forms in for Stop Flu at School Program
The letter says: "As winter approaches it is worth reminding ourselves that flu can have serious and even fatal consequences". Avoiding a flu shot in the United States is no big deal, every second person in US avoid getting their flu shot each year.

Trump Says New Trade Deal with Canada Could Exclude Mexico
In addition, officials said they are preparing for the possibility of ending the NAFTA and moving USA $1 trillion in annual trade. Trump has threatened to scrap the 1994 pact unless changes are made to address issues such as a $64 billion deficit with Mexico.

Mark Hunt Threatens UFC With Lawsuit
Saying that UFC Heavyweight Mark Hunt isn't happy about being removed from his next fight, is an understatement. The loss was later overturned to a no-contest after Lesnar tested positive to a banned substance.

Some Democrats who opposed Iran nuke deal now want it upheld
On the other hand, some argue decertification and the possibility of US sanctions on Iran might win support from the Europeans. What exactly that will look like is still being determined, but it could include greater congressional oversight.

Worst air pollution levels ever in Bay Area
At least 15 people are dead , and the death toll is expected to rise as rescue workers clear through the rubble. SkyFox captured a smoky sunset hovering over the Bay Area. "Not to mince words: It's going to be really bad".

Parents win murder appeal in case that divided India
He said the High Court verdict "does not say that the Talwars didn't do it" but that there was not enough evidence against them. Their relatives expressed happiness over the judgement, saying finally the ordeal is over for the couple.

Small Asteroid 2012 TC4 to Whiz Safely by Earth This Week

No known asteroid is now predicted to impact earth for the next 100 years. It has been described as a dress-rehearsal in case a similar asteroid hits the Earth.

A small asteroid will safely pass by Earth on Thursday at a distance of approximately 42,000 km, just above the orbital altitude of communications satellites, NASA has said. Future space rocks might, though - thus this first-of-its-kind cosmic fire drill.

Mike Kelley, who works to spot and track the space rock at Nasa, said there was "no danger".

"That's what I've been using as kind of an analogy to what we're doing here".

What makes TC4 special is that it has been chosen to test the global asteroid pre-warning system, fed by a network of observatories, universities and labs around the world. The close approach will allow researchers to learn the composition of the asteroid. The exercise will continue for another week, as observatories keep tracking the asteroid as it zooms back off into space.

Asteroid 2012 TC4 is back for another visit nearly four years to the day since it was seen for the first time zipping by our planet. It is believed to be between 14 and 30 metres wide. The two most promising techniques that NASA is investigating are the "kinetic impactor" (hitting an asteroid with an object to slightly slow it down) and the "gravity tractor" (gravitationally tugging on an asteroid by putting a large mass near it).

Backyard astronomers have little chance of seeing the asteroid, given its speed and faintness. This is an entirely voluntary project made possible via asteroid observers funded by NASA with the support of the NASA Planetary Defense Coordination Office.

The asteroid was about half the size of the meteoroid that exploded in the atmosphere over Chelyabinsk in central Russian Federation in 2013 with the kinetic energy of 30 Hiroshima atom bombs.

The 66-foot Chelyabinsk meteor struck Earth's atmosphere, injured 1,500 people and destroyed more than 7,000 buildings.

Local footage captured the fireball streaking across the sky, and some witnesses claim they felt intense heat.